{
  "manageEntity": {
    "action": "ViewPlaylist",
    "entityId": "4281",
    "entityType": "Notification",
    "nonce": "0xac388ce420b07236b3687d6abed3fd6fe4ae8e7dd3719ab06884a4e359b5e919",
    "signature": "0x61d0eaa024c3ca1b7864ed977a5268f0df0951710d2063035b7b7373cd65da6f2da596821798715cf3cf6f74f06d0e4a98264ad74b8d420a013bd4305548846c1c",
    "signer": "0x9851EA970c7F4f204227aecAACaeDC430944Ca5C",
    "userId": "138990321"
  }
}